TWI830963B - Imaging lens driving module and electronic device - Google Patents

Abstract

An imaging lens driving module includes an imaging lens assembly, a carrier element and a driving mechanism. The imaging lens assembly has an optical axis. The carrier element is for disposing the imaging lens assembly, and includes an assembling structure. The assembling structure is disposed on an outer surface of the carrier element, and extends along a direction away from the optical axis. The driving mechanism is for driving the carrier element moving along a direction parallel to the optical axis, and includes a coil pair and magnets. The coil pair is disposed on the assembling structure, and includes a bottom layer coil and a top layer coil. The bottom layer coil is entwined on the assembling structure, and is directly contact with the assembling structure. The top layer coil is stacked on and entwined on the bottom layer coil, the top layer coil is farther from the assembling structure than the bottom layer coil from the assembling structure, and the top layer coil overlaps the bottom layer coil along the direction parallel to the optical axis. Each of the magnets is correspondingly disposed on the coil pair. Therefore, the assembling structure wound via the same wire is favorable for reducing the cycle time of the product.

Description

Imaging lens drive modules and electronic devices

The present disclosure relates to an imaging lens driving module, and in particular, to an imaging lens driving module used in a portable electronic device.

In recent years, portable electronic devices have developed rapidly, such as smart electronic devices, tablet computers, etc., which have become full of modern people's lives, and imaging lens driver modules mounted on portable electronic devices have also flourished. . However, as technology advances more and more, users have higher and higher quality requirements for imaging lens driver modules. Therefore, developing an imaging lens drive module that can improve production efficiency has become an important and urgent problem in the industry.

The present disclosure provides an imaging lens drive module and an electronic device, which are assembled by winding the same wire simultaneously and in the same winding direction to produce a relatively arranged coil group, thereby saving product cycle time.

According to an embodiment of the present disclosure, an imaging lens driving module is provided, which includes an imaging lens group, a carrier element and a driving mechanism. The imaging lens group has an optical axis. The carrier element is used to configure the imaging lens group and includes an assembly structure. The assembly structure is disposed on the outer surface of the carrier element and extends in a direction away from the optical axis. The driving mechanism is used to drive the carrier element to move in a direction parallel to the optical axis, and includes at least one coil group, at least two magnets and at least one elastic element. The coil group is arranged on the assembly structure of the carrier element and includes a bottom coil and a top coil. The underlying coil wraps around the assembled structure and makes physical contact with it. The top coil is stacked and wound on the bottom coil, and the lower coil is away from the assembly structure and overlaps with the bottom coil in a direction parallel to the optical axis. The magnets are respectively arranged corresponding to the coil groups. The elastic element is coupled to the carrier element. The coil group only has two wire terminals, and the wire terminals are respectively arranged on the top coil. The wire terminals of the top coil are electrically connected to the elastic elements of the driving mechanism.

According to the imaging lens driving module of the embodiment described in the previous paragraph, the coil group of the driving mechanism may be an assembly structure in which a conductor is wound around a carrier element from the bottom coil toward the conductor terminal of the top coil.

According to the imaging lens drive module of the embodiment described in the previous paragraph, the carrier element may further include at least two columnar structures. The columnar structures are disposed on the outer surface of the carrier element and along the parallel optical axis and toward the image side of the imaging lens group. extend.

According to the imaging lens driving module of the embodiment described in the previous paragraph, the wire terminals of the top coil can be respectively wrapped around the columnar structure and physically contacted with it.

According to the imaging lens driving module of the embodiment described in the previous paragraph, the number of elastic elements may be two, and may include an upper elastic element and a lower elastic element. The upper elastic element is arranged on the object side of the imaging lens group. The lower elastic element is arranged on the image side of the imaging lens group and is opposite to the upper elastic element.

According to the imaging lens driving module of the embodiment described in the previous paragraph, the lower elastic element may include an inner part, an outer part and an elastic connection part. The inner part is coupled to the carrier element. The outer part is coupled with a base of the imaging lens driving module. The elastic connection part connects the inner part and the outer part.

According to the imaging lens driving module of the embodiment described in the previous paragraph, the wire terminal of the top coil can be electrically connected to the lower elastic element outside the outer portion.

According to one embodiment of the present disclosure, an electronic device is provided, including the imaging lens driving module of the aforementioned embodiment.

According to an embodiment of the present disclosure, an imaging lens driving module is provided, which includes an imaging lens group, a carrier element and a driving mechanism. The imaging lens group has an optical axis. The carrier element is used to configure the imaging lens group and includes an assembly structure. The assembly structure is disposed on the outer surface of the carrier element and extends in a direction away from the optical axis. The driving mechanism is used to drive the carrier element to move along the direction parallel to the optical axis, and includes at least one coil group and at least two magnets. The coil group is arranged on the assembly structure of the carrier element and includes a bottom coil and a top coil. The underlying coil wraps around the assembled structure and makes physical contact with it. The top coil is stacked and wound on the bottom coil, and the lower coil is away from the assembly structure and overlaps with the bottom coil in a direction parallel to the optical axis. The magnets are respectively arranged corresponding to the coil groups. The bottom coil of the coil set only has two wire ends. The coil group further includes a connecting wire, which is connected to the wire end of the bottom coil to keep the bottom coil electrically connected.

According to the imaging lens driving module of the embodiment described in the previous paragraph, the carrier element may further include at least one supporting portion. The supporting portion and the assembly structure are alternately arranged along a circumferential direction around the optical axis.

According to the imaging lens driving module of the embodiment described in the previous paragraph, the connecting wire of the coil group can be in physical contact with a branching point of the supporting portion of the carrier element.

According to the imaging lens driving module of the embodiment described in the previous paragraph, the coil group includes M coil groups and N wire terminals, which can satisfy the following conditions: N/2 = M; and 2 ≤ N ≤ 10.

According to an embodiment of the present disclosure, an imaging lens driving module is provided, which includes an imaging lens group, a carrier element and a driving mechanism. The imaging lens group has an optical axis. The carrier element is used to configure the imaging lens group and includes an assembly structure. The assembly structure is disposed on the outer surface of the carrier element and extends in a direction away from the optical axis. The driving mechanism is used to drive the carrier element to move in a direction parallel to the optical axis, and includes at least one coil group, at least two magnets and at least one elastic element. The coil group is disposed on the assembly structure of the carrier element and includes a first coil and a second coil. The first coil is arranged on the assembly structure of the carrier element. The second coil is arranged on the assembly structure of the carrier element and is opposite to the first coil. The first coil and the second coil respectively include a bottom coil and a top coil. The underlying coil wraps around the assembled structure and makes physical contact with it. The top coil is stacked and wound on the bottom coil, and the lower coil is away from the assembly structure and overlaps with the bottom coil in a direction parallel to the optical axis. The magnets are respectively arranged corresponding to the coil groups. The elastic element is coupled to the carrier element. When viewed from the first coil toward the second coil, the winding direction of the first coil is the same as the winding direction of the second coil.

According to the imaging lens driving module of the embodiment described in the previous paragraph, the first coil and the second coil can be composed of two wires, so that the first coil and the second coil are electrically separated.

According to the imaging lens driving module of the embodiment described in the previous paragraph, the elastic element may include a lower elastic element, and the lower elastic element is disposed on the image side of the imaging lens group.

According to the imaging lens driving module of the embodiment described in the previous paragraph, the lower elastic element may include four elastic pieces that are electrically separated from each other.

According to the imaging lens driving module of the embodiment described in the previous paragraph, the elastic piece can be electrically connected to a wire terminal and a wire end of the first coil and a wire terminal and a wire end of the second coil respectively.

The present disclosure provides an imaging lens driving module, which includes an imaging lens group, a carrier element and a driving mechanism. The imaging lens group has an optical axis. The carrier element is used to configure the imaging lens group and includes an assembly structure, wherein the assembly structure is disposed on the outer surface of the carrier element and extends in a direction away from the optical axis. The driving mechanism is used to drive the carrier element to move along the direction parallel to the optical axis, and includes at least one coil group and at least two magnets. The coil group is arranged on the assembly structure of the carrier element and includes a bottom coil and a top coil, wherein the bottom coil is wound around the assembly structure and in physical contact with it; the top coil is stacked and wound on the bottom coil, and is farther away from the assembly structure than the bottom coil. Overlap with the underlying coil in a direction parallel to the optical axis. The magnets are respectively arranged corresponding to the coil groups. Specifically, the present invention winds and assembles structures by winding the same conductor simultaneously and in the same winding direction, thereby producing oppositely arranged coil groups. Therefore, compared with the coil group produced by non-simultaneous winding assembly structures in the prior art, the imaging lens driving module of the present invention can save product cycle time.

Specifically, the carrier component can be a coil holder, a lens carrier, or a component that combines the functions of the above two, but is not limited thereto. Furthermore, the magnets can interact with the coil groups to generate driving magnetic force, so that the driving mechanism drives the carrier element to move along the direction of the parallel optical axis.

The driving mechanism may further include at least one elastic element, and the elastic element is coupled with the carrier element. Furthermore, the number of elastic elements can be two, and can include an upper elastic element and a lower elastic element, wherein the upper elastic element is arranged on the object side of the imaging lens group, and the lower elastic element is arranged on the image side of the imaging lens group, and It is arranged opposite to the upper elastic element. In this way, the driving stroke range of the driving mechanism can be defined.

The coil group can only have two wire terminals, and the wire terminals are respectively arranged on the top coil. Specifically, the wire terminal may be an end area where the wire is wound around the carrier element, the wire terminal may be in a disconnected form, and one end of the wire terminal is connected to the top coil, while the other end of the wire terminal is exposed to the air.

The wire terminals of the top coil can be electrically connected to the elastic element of the driving mechanism, and the electrical connection can be by welding or glue dispensing, but is not limited to this. Thereby, the wire terminal can be electrically connected to other components to improve the design margin of the product workstation. Specifically, during the planning and design stage of a welding station or a dispensing station, the order of execution can be adjusted relative to other stations.

The coil group of the driving mechanism may be an assembly structure in which a conductor is wound around a carrier element from the bottom coil toward the conductor terminal of the top coil. Specifically, the bottom coil is composed of a wire, and the top coil has wire terminals, so the coil group is composed of the same wire. By winding the same wire simultaneously to form a coil group, the manufacturing process can be reduced and the product cycle time can be reduced.

The carrier element may further include at least two columnar structures, wherein the columnar structures are disposed on the outer surface of the carrier element and extend along the parallel optical axis and toward the image side direction of the imaging lens group. Specifically, the columnar structure can be integrally formed with the carrier element, but is not limited to the above. Through the arrangement of the columnar structure and the carrier element being integrally formed, the assembly tolerance between the elements can be reduced.

The wire terminals of the top coil can be individually wrapped around the columnar structure and in physical contact with it. Specifically, the columnar structure is wound through the wire terminals to provide the wire tension required for fixing the coil group. Thereby, the wires can be prevented from loosening from the carrier component to improve the yield rate.

The lower elastic element may include an inner part, an outer part and an elastic connection part, wherein the inner part is coupled with the carrier element, the outer part is coupled with a base of the imaging lens drive module, and the elastic connection part connects the inner part and the outer part . Thereby, the lower elastic element can have a better coupling position to ensure the driving efficiency of the driving mechanism.

The wire terminals of the top coil can be electrically connected to the lower elastic element other than the outer portion. Thereby, a better location of the electrical connection area can be provided, and the imaging lens driving module can be miniaturized.

The carrier element may further include at least one supporting portion, wherein the supporting portion and the assembly structure are alternately arranged along a circumferential direction around the optical axis. In this way, the space utilization rate within the imaging lens driver module can be improved.

The connecting conductor of the coil assembly can be in physical contact with a branching point of the bearing part of the carrier element. Through the dividing points, the automatic optical inspection process can be made more accurate and faster, and the length of the wires that make up the coil group can be effectively controlled to reduce production costs.

Alternatively, the bottom coil of the coil set may only have two wire ends, and the coil set may further include a connecting wire, and the connecting wire is connected to the wire ends of the bottom coil so that the bottom coil remains electrically connected. Specifically, the connecting wire may be a part of the line segment of the coil group, but is not limited to this. This provides the possibility for the coil group to be composed of continuous wires.

The coil group may further include a first coil and a second coil, wherein the first coil is disposed on the assembly structure of the carrier element, and the second coil is disposed on the assembly structure of the carrier element and is opposite to the first coil. Furthermore, the first coil and the second coil may respectively include a bottom coil and a top coil, and when viewed from the first coil toward the second coil, the winding direction of the first coil is the same as the winding direction of the second coil. Specifically, the same winding direction means that they are both clockwise or counterclockwise. The winding process can be simplified by consistent winding directions, thereby reducing time costs.

The first coil and the second coil may be composed of two conductors, so that the first coil and the second coil are electrically separated. Specifically, by simultaneously winding different wires around the assembly structure to form the first coil and the second coil, two electrically separated first coils and second coils can be produced to adjust the inclination of the imaging lens group. Thereby, the electrically separated first coil and the second coil can be separately controlled to further optimize imaging quality.

The lower elastic element may include four elastic pieces that are electrically separated from each other. Specifically, the elastic sheet is suitable for mass manufacturing and easy to assemble, and can effectively reduce the size of the imaging lens drive module. Furthermore, the elastic piece can be electrically connected to the wire terminal and the wire end of the first coil and the wire terminal and the wire end of the second coil respectively. Specifically, the elastic sheet may be further electrically connected to the wire terminals of the top coil and the bottom coil of the first coil and the wire terminals of the top coil and the bottom coil of the second coil respectively. Thereby, the elastic pieces that are electrically separated from each other can be maintained, wherein the elastic pieces are divided into two pieces into a group and can be electrically connected to the first coil and the second coil respectively, so as to improve the accuracy of adjusting the tilt of the imaging lens group.

The coil group contains M coil groups and N wire terminals, which can satisfy the following conditions: N/2 = M; and 2 ≤ N ≤ 10. In this way, a suitable number range of coil groups can be obtained.

Each technical feature in the imaging lens driver module disclosed above can be combined and configured to achieve corresponding effects.

The present disclosure provides an electronic device including the aforementioned imaging lens driving module.

Based on the above implementations, specific examples are provided below and described in detail with reference to the drawings. <First Embodiment>

Figure 1A shows an exploded schematic view of the imaging lens driving module 100 according to the first embodiment of the present invention. Figure 1B shows another exploded schematic view of the imaging lens driving module 100 in the first embodiment of Figure 1A. As can be seen from Figures 1A and 1B, the imaging lens driving module 100 includes a housing 110, a gasket 120, a driving mechanism (not shown in the figure), an imaging lens group 140, a carrier element 150 and a base 190 , where the imaging lens group 140 has an optical axis X.

The carrier element 150 is used to configure the imaging lens group 140 and includes an assembly structure 151, at least two columnar structures 152 and at least one supporting portion 153, wherein the assembly structure 151 is disposed on the outer surface of the carrier element 150 and along the direction away from the optical axis. Extends in the direction of X; the columnar structure 152 is disposed on the outer surface of the carrier element 150 and extends along the parallel optical axis Arranged alternately in one circumferential direction. Specifically, the carrier element 150 can be a coil seat, a lens carrier, or an element that combines the functions of the above two, and the columnar structure 152 can be integrally formed with the carrier element 150, but is not limited to the above. Through the arrangement of the columnar structure 152 and the carrier element 150 being integrally formed, assembly tolerances between the elements can be reduced. Furthermore, by alternately disposing the supporting portions 153 and the assembly structures 151 along the circumferential direction around the optical axis X, the space utilization within the imaging lens driving module 100 can be improved.

The driving mechanism is used to drive the carrier element 150 to move along the direction parallel to the optical axis X, and includes at least one elastic element, at least one coil group 160 and at least two magnets 170 . The elastic element is coupled with the carrier element 150. The number of elastic elements can be two, and includes an upper elastic element 130 and a lower elastic element 180. The upper elastic element 130 is arranged on the object side of the imaging lens group 140, and the lower elastic element 180 is arranged on the object side of the imaging lens group 140. The image side of the imaging lens group 140 is arranged opposite to the upper elastic element 130 . In this way, the driving stroke range of the driving mechanism can be defined. The coil assembly 160 is arranged on the assembly structure 151 of the carrier element 150 . The magnets 170 are respectively arranged corresponding to the coil groups 160, and the magnets 170 can interact with the coil groups 160 to generate driving magnetic force, so that the driving mechanism drives the carrier element 150 to move along the parallel optical axis X direction. It is worth mentioning that the gasket 120 can be used to adjust the relative position of the upper elastic element 130 to the housing 110 .

The lower elastic element 180 includes an inner part 181, an outer part 182 and an elastic connection part 183, wherein the inner part 181 is coupled with the carrier element 150, and the outer part 182 is coupled with the base 190 of the imaging lens drive module 100 and is elastically connected. The portion 183 connects the inner portion 181 and the outer portion 182 . Thereby, the lower elastic element 180 can have a better coupling position to ensure the driving efficiency of the driving mechanism.

Please refer to Figures 1C to 1L. Figure 1C illustrates a partial schematic diagram of the imaging lens driving module 100 in the first embodiment of Figure 1A. Figure 1D illustrates the carrier component 150 in the first embodiment of Figure 1A. Figure 1E shows an object-side schematic view of the carrier element 150 and the coil set 160 in the first embodiment of Figure 1A . Figures 1F to 1I illustrate the first embodiment of Figure 1A Figure 1J shows a partial side view of the carrier element 150 and the coil set 160 in the first embodiment of Figure 1A. Figure 1K shows a partial side view of the carrier element 150 and the coil set 160 in the first embodiment of Figure 1A. A schematic diagram of the stacked winding of the coil set 160. Figure 1L shows a partial enlarged view of the carrier element 150 and the coil set 160 in the first embodiment of Figure 1A. As can be seen from Figures 1C to 1L, the coil group 160 includes a bottom coil 163 and a top coil 164. The bottom coil 163 is wound around the assembly structure 151 and is in physical contact with it. The top coil 164 is stacked and wound on the bottom coil in a stacking winding direction D2. Above 163, the lower-layer coil 163 is away from the assembly structure 151 and overlaps with the lower-layer coil 163 in a direction parallel to the optical axis X.

The coil group 160 only has two wire terminals 165. The wire terminals 165 are respectively arranged on the top coil 164, and the wire terminals 165 of the top coil 164 are electrically connected to the elastic components of the driving mechanism. The electrical connection can be by welding or dispensing. way to connect, but not limited to this. As can be seen from Figure 1C, in the first embodiment, the wire terminal 165 of the top coil 164 is electrically connected to the lower elastic element 180 of the driving mechanism, and the wire terminal 165 of the top coil 164 forms an electrical connection portion C with the lower The elastic element 180 is connected. Thereby, the wire terminal 165 can be electrically connected to other components to improve the design margin of the product workstation.

Furthermore, the wire terminal 165 of the top coil 164 is electrically connected to the lower elastic element 180 other than the outer portion 182 , that is, the wire terminal 165 of the top coil 164 is electrically connected to the inner portion 181 of the lower elastic element 180 and the elastic connection portion 183 , but not limited to this. Thereby, a better location of the electrical connection area can be provided, and the imaging lens driving module 100 can be miniaturized.

As can be seen from Figures 1E, 1F and 1L, the coil group 160 of the driving mechanism can be an assembly structure 151 in which a conductor is simultaneously wound around the carrier element 150 from the bottom coil 163 toward the conductor terminal 165 of the top coil 164 along the winding direction D1. composed of. Specifically, the bottom coil 163 is composed of a wire, and the top coil 164 has a wire terminal 165, so the coil group 160 is composed of the same wire. By winding the same wire simultaneously to form the coil group 160, the manufacturing process can be reduced and the cycle time of the product can be reduced.

As can be seen from FIGS. 1C and 1E , the wire terminals 165 of the top coil 164 can be respectively wrapped around the columnar structure 152 and in physical contact with the columnar structure 152 . Specifically, the wire terminal 165 may be an end area (ie, the columnar structure 152 ) of the wire winding carrier element 150 , the wire terminal 165 may be in a disconnected form, and a wire terminal 165 of the top coil 164 is exposed to the air. The wire terminals 165 of the top coil 164 are wound around the columnar structure 152 to provide the wire tension required for fixing the coil assembly 160 . Thereby, the wires can be prevented from loosening from the carrier component 150 to improve the yield rate.

Referring to Figures 1M to 1R together, Figure 1M illustrates a schematic diagram of the carrier element 150 and the coil assembly 160 in the first embodiment of Figure 1A, and Figures 1N and 1O illustrate the first embodiment of Figure 1M Figure 1P shows another schematic diagram of the carrier element 150 and the coil set 160 in the first embodiment of Figure 1A. Figures 1Q and 1R illustrate the coils in the first embodiment of Figure 1P. Schematic diagram of group 160. As can be seen from Figures 1L to 1R, the bottom coil 163 of the coil set 160 only has two wire ends 16x1, and the coil set 160 further includes a connecting wire 166, in which the two wire ends 1631 of the connecting wire 166 are respectively connected to the bottom coil 163. The wire end 16x1 keeps the bottom coil 163 electrically connected.

Furthermore, the connecting wire 166 can be a part of the line segment of the coil group 160, but is not limited to this. This provides the possibility that the coil group 160 is composed of continuous wires.

The connecting wire 166 of the coil group 160 is in physical contact with a branching point (not shown) of the supporting portion 153 of the carrier element 150 . Through the dividing points, the automatic optical inspection process can be made more accurate and faster, and the length of the wires that make up the coil group 160 can be effectively controlled to reduce production costs.

In the first embodiment, the coil group includes a coil group and two wire terminals, but it is not limited to this. <Second Embodiment>

Figure 2A shows a partial schematic diagram of the imaging lens driving module according to the second embodiment of the present invention. Figure 2B shows another partial schematic diagram of the imaging lens driving module according to the second embodiment of Figure 2A. As can be seen from Figures 2A and 2B, the imaging lens drive module (not shown) includes a housing (not shown), a gasket (not shown), a driving mechanism (not shown), and a An imaging lens group (not shown in the figure), a carrier element 250 and a base (not shown in the figure), wherein the imaging lens group has an optical axis (not shown in the figure).

The carrier element 250 is used to configure the imaging lens group, and includes an assembly structure 251 (as shown in Figure 2D), at least two columnar structures 252 and at least one supporting portion 253 (as shown in Figure 2D), wherein the assembly structure 251 is disposed on the outer surface of the carrier element 250 and extends in the direction away from the optical axis; the columnar structure 252 is disposed on the outer surface of the carrier element 250 and extends along the parallel optical axis and toward the image side direction of the imaging lens group; the support The portions 253 and the assembly structures 251 are alternately arranged along a circumferential direction around the optical axis. Specifically, the carrier element 250 can be a coil seat, a lens carrier, or an element that combines the functions of the above two, and the columnar structure 252 can be integrally formed with the carrier element 250, but is not limited to the above. Through the arrangement of the columnar structure 252 and the carrier element 250 being integrally formed, assembly tolerances between the elements can be reduced. Furthermore, by alternately disposing the supporting portions 253 and the assembly structures 251 along the circumferential direction around the optical axis, the space utilization within the imaging lens driving module can be improved.

The driving mechanism is used to drive the carrier element 250 to move along the direction parallel to the optical axis, and includes at least one elastic element, at least one coil group (not shown) and at least two magnets (not shown). The elastic element is coupled with the carrier element 250. The number of elastic elements can be two, and includes an upper elastic element 230 and a lower elastic element 280. The upper elastic element 230 is arranged on the object side of the imaging lens group, and the lower elastic element 280 is arranged on the imaging lens. The image side of the lens group is opposite to the upper elastic element 230 . In this way, the driving stroke range of the driving mechanism can be defined. The coil assembly is arranged on the assembly structure 251 of the carrier element 250 .

The lower elastic component 280 may include four elastic pieces (not shown) that are electrically separated from each other. Specifically, the elastic sheet is suitable for mass manufacturing and easy to assemble, and can effectively reduce the size of the imaging lens drive module.

Please refer to Figures 2C to 2E. Figure 2C illustrates a partial side view of the imaging lens drive module in the second embodiment of Figure 2A. Figure 2D illustrates the imaging lens driver in the second embodiment of Figure 2A. A partial object-side schematic view of the module. Figure 2E shows a partial image-side schematic view of the imaging lens drive module in the second embodiment of Figure 2A. As can be seen from Figures 2A to 2E, the coil group includes a first coil 261 and a second coil 262. The first coil 261 is disposed on the assembly structure 251 of the carrier component 250, and the second coil 262 is disposed on the carrier component 250. on the assembly structure 251 and arranged opposite to the first coil 261 .

The first coil 261 and the second coil 262 respectively include a bottom coil (not shown in the figure) and a top coil (not shown in the figure), wherein the bottom coil is wound around the assembly structure 251 and in physical contact with it; the top coil is stacked and wound on the bottom coil , the lower-layer coil is away from the assembly structure 251 and overlaps with the bottom-layer coil in a direction parallel to the optical axis.

It can be seen from FIG. 2E that when the first coil 261 is viewed toward the second coil 262, the winding direction D1 of the first coil 261 is the same as the winding direction D1 of the second coil 262. Specifically, the same winding direction D1 means that they are both clockwise or counterclockwise. By making the winding directions D1 consistent, the winding process can be simplified, thereby reducing time costs.

The first coil 261 and the second coil 262 may be composed of two wires, so that the first coil 261 and the second coil 262 are electrically separated. Specifically, by simultaneously winding the assembly structure 251 with different wires to form the first coil 261 and the second coil 262, two electrically separated first coils 261 and second coils 262 can be produced to adjust the tilt of the imaging lens group. Thereby, the electrically separated first coil 261 and the second coil 262 can be separately controlled to further optimize imaging quality.

The elastic piece can be electrically connected to a wire terminal 2611 of the first coil 261 and a wire terminal 2621 of the second coil 262 respectively, and the elastic piece connecting portion 285 of the elastic piece can be respectively connected to a wire end of the first coil 261 (Fig. (not labeled) is electrically connected to a wire end (not labeled) of the second coil 262, and the electrical connection may be by welding or glue dispensing, but is not limited to this. Furthermore, the elastic piece can be further electrically connected to the wire terminal 2611 of the top coil and the wire end of the bottom coil of the first coil 261 and the wire terminal 2621 of the top coil and the wire end of the bottom coil of the second coil 262 respectively. In the second embodiment, the wire terminal 2611 of the first coil 261 and the elastic piece are connected by welding, and the wire terminal 2621 of the second coil 262 and the elastic piece are connected by welding, and the wire end of the first coil 261 and the elastic piece are connected by welding. The connection parts 285 and the wire end of the second coil 262 and the elastic piece connection part 285 are connected by welding. Thereby, the two elastic pieces that are electrically separated from each other can be electrically connected to the first coil 261 and the second coil 262 respectively, and the accuracy of adjusting the tilt of the imaging lens group can be improved.

Furthermore, the wire terminals 2611 of the top coil of the first coil 261 and the wire terminals 2621 of the top coil of the second coil 262 are wrapped around the columnar structure 252 of the carrier element 250 to provide wire tension required for fixing the coil group. Thereby, the wires can be prevented from loosening from the carrier component 250 to improve the yield rate.

In the second embodiment, the coil group includes a coil group and two wire terminals, but it is not limited to this.

In addition, the structures and arrangements of the remaining components of the second embodiment are the same as those of the first embodiment, and will not be described again here. <Third Embodiment>

Figure 3A shows a schematic diagram of the coil sets 360a and 360b according to the third embodiment of the present invention. Figure 3B shows another schematic diagram of the coil sets 360a and 360b in the third embodiment of Figure 3A. As can be seen from Figures 3A and 3B, the coil group 360a includes a first coil 361a and a second coil 362a, and the coil group 360b includes a first coil 361b and a second coil 362b, where the first coils 361a and 361b Disposed on the carrier element (not shown) of the imaging lens drive module (not shown), the second coils 362a and 362b are disposed on the carrier element of the imaging lens drive module, and are connected to the first coil 361a, 362b respectively. 361b relative settings.

The first coil and the second coil respectively include a bottom coil and a top coil. In the third embodiment, the first coil 361a includes a bottom coil 363a and a top coil 364a, the second coil 362a includes a bottom coil 363c and a top coil 364c, and the first coil 361b includes a bottom coil 363b (as shown in Figure 3E (shown in the figure) and a top coil 364b. The second coil 362b includes a bottom coil (not shown) and a top coil 364d.

Furthermore, the bottom coil 363a of the first coil 361a, the bottom coil 363c of the second coil 362a, the bottom coil 363b of the first coil 361b, and the bottom coil 362b of the first coil 361b are wound and assembled in a structure (not shown) and are physically connected thereto. get in touch with.

The top coil 364a of the first coil 361a and the top coil 364c of the second coil 362a are respectively stacked and wound on the bottom coil 363a of the first coil 361a and the bottom coil 363c of the second coil 362a; the top coil 364b of the first coil 361b and The top coil 364d of the second coil 362b is stacked and wound on the bottom coil 363b of the first coil 361b and the bottom coil of the second coil 362b respectively. Therefore, the top coil 364a of the first coil 361a is further away from the assembly structure than the bottom coil 363a of the first coil 361a, and overlaps with the bottom coil 363a of the first coil 361a in a direction parallel to the optical axis (not shown in the figure); the second coil 362a The top coil 364c is farther from the assembly structure than the bottom coil 363c of the second coil 362a, and overlaps with the bottom coil 363c of the second coil 362a in a direction parallel to the optical axis; the top coil 364b of the first coil 361b is farther than the bottom coil 361b of the first coil 361b. The coil 363b is far away from the assembly structure and overlaps with the bottom coil 363b of the first coil 361b in the direction parallel to the optical axis; the top coil 364d of the second coil 362b is farther away from the assembly structure than the bottom coil of the second coil 362b and overlaps with the second coil 362b. The underlying coils overlap in a direction parallel to the optical axis.

Please refer to Figure 3C and Figure 3D. Figure 3C shows a schematic diagram of the first coils 361a and 361b in the third embodiment of Figure 3A. Figure 3D shows the second coil 362a of the third embodiment of Figure 3A. , schematic diagram of 362b. As can be seen from Figures 3A to 3D, the first coil 361a of the coil group 360a and the first coil 361b of the coil group 360b are first wound simultaneously, and then the second coil 362a of the coil group 360a and the second coil 362b of the coil group 360b are wound simultaneously. Winding at the same time. In this way, the product cycle time can be reduced.

Please refer to Figures 3E to 3I. Figure 3E shows an object-side schematic view of the coil assembly 360a, 360b in the third embodiment of Figure 3A. Figure 3F illustrates the coil assembly 360a in the third embodiment of Figure 3A. , a schematic view of the image side of 360b. Figures 3G to 3I show side schematic views of the coil groups 360a and 360b in the third embodiment of Figure 3A. As can be seen from Figures 3A to 3I, the top coil has two wire terminals, and the bottom coil has two wire terminals. The coil group may further include a connecting wire, and the connecting wire connects the wire terminals of the top coil and the wire terminals of the bottom coil. Keep the coil set electrically connected. In the third embodiment, the bottom coil 363a of the first coil 361a of the coil group 360a has a wire terminal 367a, the top coil 364a of the first coil 361a has a wire terminal 365a, and the bottom coil 363c of the second coil 362a of the coil group 360a Having a wire terminal 367c, the top coil 364c of the second coil 362a has a wire terminal 365c, wherein the coil group 360a may further include a connecting wire 366a, and the connecting wire 366a connects the wire terminal 365a of the top coil 364a of the first coil 361a and the third coil 361a. The wire end 367c of the bottom coil 363c of the second coil 362a keeps the coil group 360a electrically connected; the bottom coil 363b of the first coil 361b of the coil group 360b has a wire end 367b, and the top coil 364b of the first coil 361b has a wire Terminal 365b, the bottom coil of the second coil 362b of the coil group 360b has a wire end (not shown in the figure), and the top coil 364d of the second coil 362b has a wire terminal 365d, wherein the coil group 360b may further include a connecting wire 366b, and The connecting wire 366b connects the wire terminal 365b of the top coil 364b of the first coil 361b and the wire terminal of the bottom coil 362b of the second coil 362b, so that the coil group 360b remains electrically connected. Specifically, the connecting wires 366a and 366b can be part of the line segments of the coil groups 360a and 360b respectively, but are not limited to this. This provides the possibility that the coil groups 360a and 360b are composed of continuous wires.

Furthermore, the wire terminals 365a of the top coil 364a and the wire terminals 365c of the top coil 364c are wrapped around the columnar structure of the carrier element (not shown) to provide wire tension required for fixing the coil group 360a; the wire terminals of the top coil 364b 365b and the wire terminals 365d of the top coil 364d are wrapped around the columnar structure of the carrier element to provide the wire tension required to secure the coil group 360b. Thereby, the wires can be prevented from loosening from the carrier component to improve the yield rate.

In the third embodiment, the coil set includes two coil sets and four wire terminals, but it is not limited to this.

In addition, the structure and arrangement relationship of the remaining components of the third embodiment are the same as those of the first and second embodiments, and will not be described again here. <Fourth Embodiment>

Figure 4A shows a schematic diagram of the electronic device 40 according to the fourth embodiment of the present invention, and Figure 4B shows another schematic diagram of the electronic device 40 according to the fourth embodiment of Figure 4A. As can be seen from Figures 4A and 4B, the electronic device 40 of the fourth embodiment is a smart phone. The electronic device 40 includes an imaging lens driving module 401 (as shown in Figure 4C), and the imaging lens driving module 401 is Ultra-wide-angle camera module 402, high-pixel camera module 403 and telephoto camera module 404, in which the imaging lens drive module 401 includes an imaging lens group (not shown) and a carrier element (not shown) and a driving mechanism (not shown). Furthermore, the imaging lens driving module 401 can be any one of the aforementioned first to third embodiments, but the present disclosure is not limited thereto. This helps to meet the current electronic device market's mass production and appearance requirements for the imaging lens driver module mounted thereon.

Furthermore, the user enters the shooting mode through the user interface 405 of the electronic device 40. In the fourth embodiment, the user interface 405 can be a touch screen, which is used to display images and has a touch function, and can be used to manually Adjust the shooting angle to switch to different imaging lens driver modules 401. At this time, the imaging lens group of the imaging lens drive module 401 collects imaging light on an electronic photosensitive element (not shown), and outputs electronic signals related to the image to an imaging signal processing element (Image Signal Processor, ISP) 406.

FIG. 4C shows a block diagram of the electronic device 40 according to the fourth embodiment of FIG. 4A. As can be seen from FIGS. 4B and 4C , according to the specifications of the electronic device 40 , the electronic device 40 may further include an optical anti-shake component 407 . Furthermore, the electronic device 40 may further include at least one focus assist module 410 and at least one sensor. Test element 408. The focus assist module 410 can be a color temperature compensated flash module 409, an infrared ranging element, a laser focus module, etc. The sensing element 408 can have the function of sensing physical momentum and actuation energy, such as an accelerometer, a gyroscope, The Hall Effect Element is used to sense shaking and jitter exerted by the user's hand or the external environment, thereby facilitating the autofocus function of the imaging lens configuration in the electronic device 40 and the optical anti-shake component 407. In order to obtain good imaging quality, it is helpful for the electronic device 40 according to the present disclosure to have multiple modes of shooting functions, such as optimized Selfie, low-light HDR (High Dynamic Range, high dynamic range imaging), and high-resolution 4K (4K Resolution). Video recording etc. In addition, the user can directly visually view the camera's shooting screen through the user interface 405, and manually operate the framing range on the user interface 405 to achieve a WYSIWYG autofocus function.

Furthermore, the imaging lens, electronic photosensitive element, optical anti-shake component 407, sensing element 408 and focus assist module 410 can be arranged on a flexible printed circuit board (FPC) (not shown in the figure), and The imaging signal processing element 406 and other related components are electrically connected through a connector (not shown) to execute the shooting process. Current electronic devices such as smartphones tend to be thin and light. The imaging lens driver module and related components are configured on a flexible circuit board, and then connectors are used to integrate the circuits to the motherboard of the electronic device, which can meet the requirements of the limited space inside the electronic device. The mechanical design and circuit layout require greater margins, which also allows the autofocus function of the imaging lens driver module to be more flexibly controlled through the touch screen of the electronic device. In the fourth embodiment, the electronic device 40 may include a plurality of sensing elements 408 and a plurality of focus auxiliary modules 410. The sensing elements 408 and the focus auxiliary module 410 are disposed on a flexible circuit board and at least one other flexible circuit board (not shown in the figure). (shown in the figure), and electrically connect the imaging signal processing element 406 and other related components through corresponding connectors to execute the shooting process. In other embodiments (not shown), the sensing element and the focus assist module can also be disposed on the motherboard of the electronic device or other forms of carrier boards according to the mechanical design and circuit layout requirements.

In addition, the electronic device 40 may further include, but is not limited to, a display unit (Display), a control unit (Control Unit), a storage unit (Storage Unit), a temporary storage unit (RAM), a read-only storage unit (ROM), or a combination thereof.

Figure 4D shows a schematic diagram of images captured by the ultra-wide-angle camera module 402 in the fourth embodiment of Figure 4A. As can be seen from Figure 4D, the ultra-wide-angle camera module 402 can capture a larger range of images and has the function of accommodating more scenery.

Figure 4E shows a schematic diagram of images captured by the high-pixel camera module 403 in the fourth embodiment of Figure 4A. As can be seen from Figure 4E, the high-pixel camera module 403 can capture images of a certain range with high pixels, and has the function of high resolution and low distortion.

Figure 4F shows a schematic diagram of images captured by the telephoto camera module 404 according to the fourth embodiment of Figure 4A. As can be seen from Figure 4F, the telephoto camera module 404 has a high-magnification magnification function and can capture distant images and magnify them to high magnifications.

It can be seen from Figures 4D to 4F that the imaging lens driving module 401 with different focal lengths is used for framing, and combined with image processing technology, the zoom function can be realized on the electronic device 40 .

Although the present invention has been disclosed above through embodiments, they are not intended to limit the present invention. Anyone with ordinary knowledge in the technical field may make some modifications and modifications without departing from the spirit and scope of the present invention. Therefore, The protection scope of the present invention shall be determined by the appended patent application scope.

100,401: Imaging lens driver module 110: Shell 120:Padding 130,230: Upper elastic element 140: Imaging lens group 150,250: Carrier component 151,251:Assembled structure 152,252: columnar structure 153,253: Reliance Department 160,360a,360b: Coil group 163,363a,363b,363c: Bottom coil 164,364a,364b,364c,364d: top coil 165,2611,2621,365a,365b,365c,365d: wire terminal 166,366a,366b:Connecting wires 1631,16x1,367a,367b,367c: Wire end 170:Magnet 180,280: Lower elastic element 181:Inside part 182:Outer part 183: Elastic connection part 190:Pedestal 261,361a,361b: first coil 262,362a,362b: second coil 285: Elastic piece connection part 40: Electronic devices 402:Ultra wide angle camera module 403:High pixel camera module 404: Telephoto camera module 405: User interface 406: Imaging signal processing components 407: Optical anti-shake component 408: Sensing element 409: Flash module 410: Focus assist module X: optical axis C: Electrical connection part D1: winding direction D2: Stacking winding direction

Figure 1A shows an exploded schematic diagram of an imaging lens drive module according to the first embodiment of the present invention; Figure 1B shows another exploded schematic diagram of the imaging lens drive module in the first embodiment of Figure 1A; Figure 1C shows a partial schematic diagram of the imaging lens drive module in the first embodiment of Figure 1A; Figure 1D shows an object-side schematic view of the carrier element and the coil assembly in the first embodiment of Figure 1A; Figure 1E shows a schematic view of the image side of the carrier element and coil assembly in the first embodiment of Figure 1A; Figure 1F shows a schematic side view of the carrier element and the coil assembly in the first embodiment of Figure 1A; Figure 1G shows another schematic view of the carrier element and coil assembly in the first embodiment of Figure 1A; Figure 1H shows another schematic view of the carrier element and coil assembly in the first embodiment of Figure 1A; Figure 1I shows another schematic view of the carrier element and coil assembly in the first embodiment of Figure 1A; Figure 1J shows a partial side view of the carrier element and the coil assembly in the first embodiment of Figure 1A; Figure 1K shows a schematic diagram of the stacked winding of the coil group in the first embodiment of Figure 1A; Figure 1L shows a partial enlarged view of the carrier element and the coil assembly in the first embodiment of Figure 1A; Figure 1M shows a schematic diagram of the carrier element and the coil assembly in the first embodiment of Figure 1A; Figure 1N shows a schematic diagram of the coil group in the first embodiment of Figure 1M; Figure 1O shows another schematic diagram of the coil assembly in the first embodiment of Figure 1M; Figure 1P shows another schematic diagram of the carrier element and the coil assembly in the first embodiment of Figure 1A; Figure 1Q shows a schematic diagram of the coil group in the first embodiment of Figure 1P; Figure 1R shows another schematic diagram of the coil assembly in the first embodiment of Figure 1P; Figure 2A shows a partial schematic diagram of an imaging lens drive module according to a second embodiment of the present invention; Figure 2B shows another part of the schematic diagram of the imaging lens drive module in the second embodiment of Figure 2A; Figure 2C shows a partial side view of the imaging lens drive module in the second embodiment of Figure 2A; Figure 2D shows a partial object-side schematic view of the imaging lens drive module in the second embodiment of Figure 2A; Figure 2E shows a partial image-side schematic view of the imaging lens drive module in the second embodiment of Figure 2A; Figure 3A shows a schematic diagram of a coil assembly according to a third embodiment of the present invention; Figure 3B shows another schematic diagram of the coil assembly in the third embodiment of Figure 3A; Figure 3C shows a schematic diagram of the first coil in the third embodiment of Figure 3A; Figure 3D shows a schematic diagram of the second coil in the third embodiment of Figure 3A; Figure 3E shows a schematic view of the object side of the coil assembly in the third embodiment of Figure 3A; Figure 3F shows a schematic view of the image side of the coil assembly in the third embodiment of Figure 3A; Figure 3G shows a schematic side view of the coil assembly in the third embodiment of Figure 3A; Figure 3H shows another schematic view of the coil assembly in the third embodiment of Figure 3A; Figure 3I shows another schematic side view of the coil assembly in the third embodiment of Figure 3A; Figure 4A is a schematic diagram of an electronic device according to a fourth embodiment of the present invention; Figure 4B shows another schematic diagram of the electronic device in the fourth embodiment of Figure 4A; Figure 4C shows a block diagram of the electronic device according to the fourth embodiment of Figure 4A; Figure 4D shows a schematic diagram of images captured by the ultra-wide-angle camera module in the fourth embodiment of Figure 4A; Figure 4E shows a schematic diagram of images captured by the high-pixel camera module in the fourth embodiment of Figure 4A; and Figure 4F is a schematic diagram of images captured by the telephoto camera module according to the fourth embodiment of Figure 4A.

100: Imaging lens driver module

110: Shell

120:Padding

130: Upper elastic element

140: Imaging lens group

150: Carrier component

151:Assembly structure

153:Reliance department

160: Coil group

170:Magnet

180: Lower elastic element

181:Inside part

182:Outer part

183: Elastic connection part

190:Pedestal

X: optical axis

Claims (11)

An imaging lens drive module includes: an imaging lens group with an optical axis; a carrier element used to configure the imaging lens group, and includes: an assembly structure disposed on the outer surface of the carrier element and along a distance away from the The optical axis extends in the direction; and a driving mechanism is used to drive the carrier element to move in a direction parallel to the optical axis, and includes: at least one coil group, which is disposed on the assembly structure of the carrier element and includes at least two Coils, wherein the at least two coils respectively include: a bottom coil, wound around the assembly structure and in physical contact with it; and a top coil, stacked and wound on the bottom coil, farther away from the assembly structure than the bottom coil, and in contact with the bottom layer The coils overlap in a direction parallel to the optical axis; at least two magnets are respectively provided corresponding to the at least one coil group; and at least one elastic element is coupled with the carrier element; wherein the at least one coil group only has two wire terminals, and The two wire terminals are respectively provided on the top coil; wherein the two wire terminals of the top coil are electrically connected to the at least one elastic element of the driving mechanism; wherein the at least one coil group of the driving mechanism is a wire At the same time, it is composed of the assembly structure in which the bottom coil is wound around the carrier element toward the two wire terminals of the top coil; Wherein, the at least two coils are simultaneously wound around the assembly structure of the carrier element from each bottom coil toward each top coil. The imaging lens drive module of claim 1, wherein the carrier element further includes: at least two columnar structures disposed on the outer surface of the carrier element and parallel to the optical axis and toward the image side of the imaging lens group direction extension. The imaging lens driving module of claim 2, wherein the two wire terminals of the top coil are respectively wrapped around the at least two columnar structures and are in physical contact with them. The imaging lens drive module as claimed in claim 1, wherein the number of the at least one elastic element is two and includes: an upper elastic element disposed on the object side of the imaging lens group; and a lower elastic element disposed on the The image side of the imaging lens group is arranged opposite to the upper elastic element. The imaging lens drive module of claim 4, wherein the lower elastic element includes: an inner part coupled with the carrier element; an outer part coupled with a base of the imaging lens drive module; and an elastic The connecting part connects the inner part and the outer part. The imaging lens driving module of claim 5, wherein the two wire terminals of the top coil are electrically connected to the lower elastic element outside the outer portion. An electronic device including: the imaging lens drive module as described in claim 1. An imaging lens drive module includes: an imaging lens group with an optical axis; a carrier element used to configure the imaging lens group, and includes: an assembly structure disposed on the outer surface of the carrier element and along a distance away from the The optical axis extends in the direction; and a driving mechanism is used to drive the carrier element to move in a direction parallel to the optical axis, and includes: at least one coil group, which is disposed on the assembly structure of the carrier element and includes at least two Coils, wherein the at least two coils respectively include: a bottom coil, wound around the assembly structure and in physical contact with it; and a top coil, stacked and wound on the bottom coil, farther away from the assembly structure than the bottom coil, and in contact with the bottom layer The coils overlap in a direction parallel to the optical axis; and at least two magnets are respectively provided corresponding to the at least one coil group; wherein the bottom coil of the at least one coil group only has two wire ends; wherein the at least one coil group further Contains a connecting wire, the connecting wire Connect the two wire ends of the bottom coil to keep the bottom coil electrically connected; wherein, the at least one coil group of the driving mechanism is simultaneously composed of the assembly structure in which the bottom coil winds the carrier element toward the top coil; Wherein, the at least two coils are simultaneously wound around the assembly structure of the carrier element from each bottom coil toward each top coil. The imaging lens driving module of claim 8, wherein the carrier element further includes: at least one supporting portion alternately arranged with the assembly structure along a circumferential direction around the optical axis. The imaging lens driving module of claim 9, wherein the connecting wire of the at least one coil group is in physical contact with a branching point of the supporting portion of the carrier element. The imaging lens driving module of claim 8, wherein the at least one coil group includes M coil groups and N wire terminals, which satisfy the following conditions: N/2=M; and 2

N

10.

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